21909459

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{51071}}^1$

素因数の和:51098

約数の個数: 16

約数和(自身を含む): 34320384

約数和(自身を除く): 12410925

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 51071, 153213, 561781, 663923, 1685343, 1991769, 7303153, 21909459]

約数ペア:

[(1, 21909459), (3, 7303153), (11, 1991769), (13, 1685343), (33, 663923), (39, 561781), (143, 153213), (429, 51071)]